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Finding the Fourth Proportional to 352,884.78, 529,335.81 and 103,574.70

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Solution

The fourth proportional to 352,884.78, 529,335.81 and 103,574.70 is: 155,364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,884.78 : 529,335.81 = 103,574.70 : x
  2. Step 2: Convert to fraction form
    352,884.78/529,335.81 = 103,574.70/x
  3. Step 3: Cross multiply
    352,884.78x = 529,335.81 × 103,574.70
  4. Step 4: Simplify right side
    352,884.78x = 54,825,797,720.01
  5. Step 5: Solve for x
    x = 54,825,797,720.01/352,884.78
  6. Step 6: Final answer
    x = 155,364.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.